This game looks great, animation on the character and the 2d sprites really give the game its own style. The levels themselves were impressive and inventive
However, i did find a few things difficult with the gameplay.
I found it hard to gauge if notes (or inputs) were to be hit at the same time (maybe adding a grid to the guitar heroesque scroll could help with this?) and I also couldn't tell if notes were being hit correctly or not due to a slight lack of feedback. The difficulty is pretty steep, especially the swimming level it feels like i need to have written the score myself to play it successfully.
Overall pretty cool, would definitely play this again